Global ETD Search

1	A Collection of Visual Thesauri for Browsing Large Collections of Geographic Images Ramsey, Marshall C., Chen, Hsinchun, Zhu, Bin January 1999 (has links) Artificial Intelligence Lab, Department of MIS, University of Arizona / Digital libraries of geo-spatial multimedia content are currently deficient in providing fuzzy, concept-based retrieval mechanisms to users. The main challenge is that indexing and thesaurus creation are extremely laborintensive processes for text documents and especially for images. Recently, 800,000 declassified satellite photographs were made available by the United States Geological Survey. Additionally, millions of satellite and aerial photographs are archived in national and local map libraries. Such enormous collections make human indexing and thesaurus generation methods impossible to utilize. In this article we propose a scalable method to automatically generate visual thesauri of large collections of geo-spatial media using fuzzy, unsupervised machine-learning techniques. Geographic Digital Libraries Indexing Digital Libraries
2	Creating a Large-Scale Digital Library for Georeferenced Information Zhu, Bin, Ramsey, Marshall C., Ng, Tobun Dorbin, Chen, Hsinchun, Schatz, Bruce R. 07 1900 (has links) Artificial Intelligence Lab, Department of MIS, University of Arizona / Digital libraries with multimedia geographic content present special challenges and opportunities in today's networked information environment. One of the most challenging research issues for geospatial collections is to develop techniques to support fuzzy, concept-based, geographic information retrieval. Based on an artificial intelligence approach, this project presents a Geospatial Knowledge Representation System (GKRS) prototype that integrates multiple knowledge sources (textual, image, and numerical) to support concept-based geographic information retrieval. Based on semantic network and neural network representations, GKRS loosely couples different knowledge sources and adopts spreading activation algorithms for concept-based knowledge inferencing. Both textual analysis and image processing techniques have been employed to create textual and visual geographical knowledge structures. This paper suggests a framework for developing a complete GKRS-based system and describes in detail the prototype system that has been developed so far. Geographic Digital Libraries Geographic Information Science Digital Libraries
3	Library Consortia: A Step forward the Information Society Bedi, Shalu, Sharma, Kiran January 2008 (has links) The increasing price of electronic journals, indexing and abstracting databases along with the traditional published print subscriptions has forced library community to explore alternative means of subscription. The emergence of library a very promising development in this direction. The Phenomenon of consortia or group of libraries maintaining information resources together has become very common these days, In India, during last few years we witnessed many consortia based subscription. This paper briefly discusses the concept, need, advantages and also the major consortia initiatives in India. Geographic Digital Libraries Scholarly Communication Economics of Information Academic Libraries
4	Treatment of Georeferencing in Knowledge Organization Systems: North American Contributions to Integrated Georeferencing Buchel, Olha, Hill, Linda L. January 2009 (has links) Recent research projects in North America that have advanced the integration of formal mathematical georeferencing and informal placename georeferencing in knowledge organization systems are described and related to visualization applications. World Wide Web Geographic Digital Libraries Geographic Information Science Software Knowledge Organization
5	e-Research and the Ubiquitious Open Grid Digital Libraries of the Future Patkar, Vivek, Chandra, Smita January 2006 (has links) Libraries have traditionally facilitated each of the following elements of research: production of new knowledge, its preservation and its organization to make it accessible for use over the generations. In modern times, the library is constantly required to meet the challenges of information explosion. Assimilating resources and restructuring practices to process the large data volumes both in the print and digital form held across the globe, therefore, becomes very important. A recourse by the libraries to application of successive forms of what can be called as Digital Library Technologies (DLT) has been the imperative. The Open Archives Initiative (OAI) is one recent development that is expected to assist the libraries to partner in setting up virtual learning environment and integrating research on a near universal scale. Future extension of this concept is envisaged to be that of Grid Computing. The technologies driving the â Gridâ would let people share computing power, databases, and other on-line tools securely across institutional and geographic boundaries without sacrificing the local autonomy. Ushering an era of the ubiquitous library helping the e-research is thus on the card. This paper reviews the emerging technological changes and charts the future role for the libraries with special reference to India. Virtual Communities Library Systems Archives Knowledge Organization Information Analysis Community Informatics Digital Libraries Internet Economics of Information Information Seeking Behaviors Knowledge Structures Electronic Publishing Wireless Technologies Information Extraction Geography Academic Libraries Social Informatics Information Ethics Knowledge Management Information Retrieval World Wide Web Digital Preservation Interdisciplinarity Learning Science User Studies Government Information Libraries Distributed Learning null Training Public Libraries Information Systems Information Literacy Geographic Digital Libraries Scholarly Communication Science Technology Studies Knowledge Representation

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